Localized cerebral blood flow response at submillimeter columnar resolution.

@article{Duong2001LocalizedCB,
  title={Localized cerebral blood flow response at submillimeter columnar resolution.},
  author={Timothy Q. Duong and D. S. Kim and Kamil Ugurbil and S. G. Kim},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2001},
  volume={98 19},
  pages={
          10904-9
        }
}
Functional magnetic resonance imaging (fMRI) has been widely used for imaging brain functions. However, the extent of the fMRI hemodynamic response around the active sites, at submillimeter resolution, remains poorly understood and controversial. With the use of perfusion-based fMRI, we evaluated the hemodynamic response in the cat visual cortex after orientation-specific stimuli. Activation maps obtained by using cerebral blood flow fMRI measurements were predominantly devoid of large draining… CONTINUE READING

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